Cyclodextrin-membrane interaction in drug delivery and membrane structure maintenance.

Area of Science:

• Biochemistry
• Materials Science
• Pharmaceutics

Background:

• Cyclodextrins (CDs) are cyclic oligosaccharides that enhance drug solubility and stability via inclusion complex formation.
• Drug-in-cyclodextrin-in-liposome (DCL) systems encapsulate CD/drug complexes within liposomes for improved drug delivery.
• Understanding CD-membrane interactions is crucial for optimizing DCL systems and predicting biological effects.

Purpose of the Study:

• To review the literature on the interactions between cyclodextrins and biomimetic/biological membranes.
• To highlight the impact of cyclodextrins on membrane properties such as fluidity, stability, and permeability.

Main Methods:

• Literature review of studies investigating cyclodextrin interactions with various membrane models and biological systems.
• Analysis of reported effects of cyclodextrins on membrane composition (phospholipids, cholesterol, proteins).
• Synthesis of findings regarding changes in membrane fluidity, permeability, and structural integrity.

Main Results:

• Cyclodextrins can extract lipids and proteins from membranes, with effects varying by membrane composition and CD type/concentration.
• CDs can alter membrane fluidity, permeability, and stability, potentially causing leakage of cellular contents.
• Conversely, CDs can preserve membrane integrity, particularly during processes like freeze-drying.

Conclusions:

• Cyclodextrins exhibit complex interactions with biological membranes, influencing their physical and chemical properties.
• These interactions have significant implications for the efficacy and safety of cyclodextrin-based drug delivery systems.
• Further research is needed to fully elucidate these interactions for advanced drug delivery applications.